Rough grinding is suitable for brewing utensils-hand brewing coffee pot which kind of appliance is better brand introduction

Rough grinding is suitable for brewing utensils-hand brewing coffee pot which kind of appliance is better brand introduction

Medium-gravel, like rough sand

Brewing utensils: drip coffee machine (flat bottom filter), siphon pot, vacuum pot

Fine-smoother to the touch, finer than sugar and table salt

Brewing utensils: drip coffee machine (conical filter), Italian mocha pot, siphon pot, vacuum pot

Ultra-fine-thinner than sugar, but not too powdery, you can still distinguish the particles from the touch.

Brewing utensils: Italian espresso machine (pump or steam), hand coffee

Turkish-powdered, like flour, the cheapest (blade) grinder cannot grind this fineness

Brewing utensils: Turkish copper pot (ibrik)

Each extraction apparatus has its own appropriate degree of grinding, so grinding is not the degree of grinding you want. As I just said, when extracting coffee with filter paper trickling filtration, the coffee powder is too coarse or too fine, which means that the most suitable grinding degree is medium to medium roughness.

Is ultra-thick grinding better? This is also a matter of degree. If the grinding is too rough, the hot water will easily fall through the filter paper, and the delicious ingredients of the coffee will not be fully extracted. In this way, the coffee that falls into the coffee pot will become a mild liquid.

In the process of grinding and extraction, there is an unchanging basic rule, that is, "the finer the grinding degree, the heavier the bitterness, and the thicker the grinding degree, the weaker the bitterness." This is based on the fact that the surface area of coffee powder is covered by hot water. From this, we can know the relationship between the extraction apparatus and the grinding degree of coffee powder.

Espresso coffee, for example, grinds deeply roasted beans and uses an espresso machine to extract a small amount of coffee liquid in a short period of time, resulting in coffee with a strong bitter taste: what about the same coffee powder extracted by filter paper trickling filtration? The result of the actual operation is that the filter paper will be blocked by coffee powder, which makes it difficult for the injected hot water to pass through, the extraction time is prolonged, and finally evolves into the case of excessive extraction.